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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Saturated hydrocarbons having carbon atoms more than 20 in a molecule are solids due to
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higher densities
higher molar masses
the chain, are more zig-zag
all are correct
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Question # 2
The buffering property of proteins is due to the presence of
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Acidic and basic group
Hydrogen bonds
Indole group
Hyrophobic
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Question # 3
Temporary hardness can be removed by adding
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Lime
Carbon
Oxygen
Slaked lime
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Question # 4
Which of the following formula is correct for density of any gas
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d = RT/PM
d = PM/RT
d = MT/PR
d = RM/PT
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Question # 5
The potential difference set up at 25 C and 1 atm when clectrode is dipped m Tis one molar ionic sohution is called
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Single electrode potential
electrode potential
Standard electrode potential
Standard hydrogen electrode
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Question # 6
Polycyclic aromatic hydrocarbons are taught to be
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Disinfectant
Carcinogenic
Helpful
Reactive
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Question # 7
The energy difference of d-orbitals varies from
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Atom to atom
lon to ion
Electron to electron
proton to proton
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Question # 8
which chlorine compound has bonding that can be described as ionic with some convalent character?
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NaCI
MgCI
2
AICI
3
SiCI
4
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Question # 9
Dehydrogenase is an erample of
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Transferase
Hydrolase
Lyase
Oxido-reductase
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Question # 10
Formula of paltimic acid is:
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C
11
H
22
COOH
C
13
H
27
COOH
C
15
H
31
COOH
C
17
H
35
COOH
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Question # 11
Sea gets polluted bu accidental oil spills and
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Atmospheric pressure
Nitrogen gas
Cargo oil tankers
Aero plane
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Question # 12
Which of the following is weakly acidic in nature
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Alcohol
Phenol
Aidehyde
Amide
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Question # 13
Partial reduction of acetic acid happens with
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NH
3
LiAIH
4
P + HI
PCI
5
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Question # 14
The reaction of alcohol with SOCI
2
in the presence of pyridine as catalyst gives
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Acids
Acid chloride
Alkyl halide
Benzene
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Question # 15
The general formula of amino acids is
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Question # 16
Factors affecting denaturation of proteins:
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Change in temp and pH
Strong reducing agent
Strong oxidizing agent
All of these
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Question # 17
In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is
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3
2
5
Zero
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Question # 18
In its reaction with Na, 1 mol of X gives 1 mol of H
2(g)
. What is X
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CH
3
CH
2
CH
2
CH
2
OH
(CH
3
)
3
COH
CH
3
CH
2
CH
2
CO
2
H
CH
3
CH(OH)CO
2
H
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Question # 19
Which one of the following has no units of its K
c
value
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Question # 20
Nylon, 6,6 is a condensation polymer of
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Adipic acid and glycol
Phthalic acid and glycol
Adipic acid and hexaethylene diamine
Pthalic acid and hexaethylene diamine
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Question # 21
Increasing skin cancer and high mutation rate are due to
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Acid rain
Ozone depletion
CO pollution
CO
2
Pollution
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Question # 22
Gradual addition of electronic shells in the nobel gases causes a decrease in their
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Ionization energy
Atomic radius
Boiling point
Density
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